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  1. CTR

    Best Moblie Antenna for OTR Truck

    Properly used, calibrated, and in good shape they are suitable for Ham and CB use. They have a very stable SWR bridge, but the bridge is normalized to 50 ohms. Like all bridges, it does not actually read standing waves. It reads deviation from the normalized impedance of 50 ohms at the point...
  2. CTR

    Best Moblie Antenna for OTR Truck

    Traditional practice when discussing sinusoidal AC or RF voltage or current levels is to assume RMS voltage and current unless otherwise stated. What you are saying only complicates a discussion by bringing time and distance into things needlessly. This is not a discussion of time varying...
  3. CTR

    Best Moblie Antenna for OTR Truck

    SWR is the easy part if people don't get too caught up in wave theory they don't need or are not ready or able to understand. It still really takes a good book, like Maxwell's or even the ARRL books. I would stay away from Internet and especially YouTube. In a long feedline, SWR above 1:1...
  4. CTR

    Best Moblie Antenna for OTR Truck

    This thread may be too fragmented to exchange information. Antennas, feed lines, and radio systems all work a certain way. They follow rules that cannot be broken and cannot be changed. If someone comes up with something that goes against how things really work, and this certainly happens a...
  5. CTR

    Best Moblie Antenna for OTR Truck

    Loss in a given feedline is determined by SWR, and if the feedline is real short (less than 1/2 wave or so) by the direction of mismatch. On receiving, the receiver sets the feedline SWR and resulting feedline loss from mismatch. But it is largely unimportant. On transmitting, the antenna is...
  6. CTR

    Best Moblie Antenna for OTR Truck

    First of all, using the word "resonance" is pointless. I'm not sure where that came from, but it is a nebulous parameter. By definition resonance is when voltage and current are in phase, or when reactance is zero. So what do you call "resonant"? Do you mean when the imaginary part of the feed...
  7. CTR

    Best Moblie Antenna for OTR Truck

    I can see we are talking past each other. Noise figure has nothing to do with a noise bridge. Noise figure is a way of expressing weak signal receiving capability by using noise temperature. Analyzers, even very good analyzers, are more accurate for SWR than reactance. Most important the...
  8. CTR

    Best Moblie Antenna for OTR Truck

    There are a lot of people here making silly pie in the sky claims. They probably get away with it in CB forums because some people like to argue nonsense, and other just don't know when it is nonsense. I don't have a lot of time for this, but let's look at just two of the many extremes of...
  9. CTR

    Best Moblie Antenna for OTR Truck

    Looking for or posting simple authoritative answers is not going to work. The entire issue is more complicated than people imagine. It would likely consume many days of writing for an almost meaningless result. A claim has been made or implied that base resistance is a way to determine antenna...